Jump to content
UltiMaker Community of 3D Printing Experts

Nylon gets stuck at end of print


Recommended Posts

Posted · Nylon gets stuck at end of print

Hello,

 

I have a weird bug occurring when printing with dual extrusion.

 

I will describe the circumstances:

I'm printing parts combined out of Ultimaker Nylon (Print Core 1) and Ultimaker TPU 95A (Print Core 2).

The parts come out nicely, but when the print is finished, the Nylon always gets stuck in the print core. The core even gets pulled back into the print head. Then the wizard for stuck material appears.

When i follow the instructions, print core 1 gets heated up again and clicks back down hard when the Nylon is hot enough. (It seems to be free at this point)

I still have to remove the bowden tube and cut the material to finish the wizard. Then it gets unloaded.

As if that wasn't enough, after finishing the process, the print bed violently falls down without much resistance from the Z-steppers.

 

Long story short: I think the printers workflow when unloading the material has a bug. After printing the last layer with TPU, print core 1 doesn't heat up again and therefore fails to unload the Nylon properly.

 

I would appreciate some help - maybe i'm doing something wrong. If not, maybe this could be looked over for future bug fixes.

 

Thanks in advance. 

  • Link to post
    Share on other sites

    • 4 weeks later...
    • 4 weeks later...
    Posted · Nylon gets stuck at end of print

    Sadly i didn't find a solution - now I even have the problem occurring with another Filament - Polymaker PA6-CF.

    On 2/8/2022 at 5:04 PM, dcschooley said:

    I'm having the exact same problem. Have you found a solution? I've found that you don't need to remove the Bowden tube or cut anything. Just let the core heat back up. 

    I remove the tube so the Feeder doesn't Push the Filament through the nozzle with the wizard. Then it can be unloaded.

    The print bed also falls down after the wizard finished.

     

    What i did is replace the front fan because i thought the filament gets stuck in the tube of the core.

    Nothing changed - the printer seems to make a cold-pull but can't do it because the PA is too sticky.

     

    Is there a way to override this cold pull?

    It's not very efficient when i have to remove the filament manually after every print - if i wanted to do that i could have bought a much cheaper printer.

  • Link to post
    Share on other sites

    Create an account or sign in to comment

    You need to be a member in order to leave a comment

    Create an account

    Sign up for a new account in our community. It's easy!

    Register a new account

    Sign in

    Already have an account? Sign in here.

    Sign In Now
     Share

    • Our picks

      • Here it is. The new UltiMaker S7
        The UltiMaker S7 is built on the success of the UltiMaker S5 and its design decisions were heavily based on feedback from customers.
         
         
        So what’s new?
        The obvious change is the S7’s height. It now includes an integrated Air Manager. This filters the exhaust air of every print and also improves build temperature stability. To further enclose the build chamber the S7 only has one magnetically latched door.
         
        The build stack has also been completely redesigned. A PEI-coated flexible steel build plate makes a big difference to productivity. Not only do you not need tools to pop a printed part off. But we also don’t recommend using or adhesion structures for UltiMaker materials (except PC, because...it’s PC). Along with that, 4 pins and 25 magnets make it easy to replace the flex plate perfectly – even with one hand.
         
        The re-engineered print head has an inductive sensor which reduces noise when probing the build plate. This effectively makes it much harder to not achieve a perfect first layer, improving overall print success. We also reversed the front fan direction (fewer plastic hairs, less maintenance), made the print core door magnets stronger, and add a sensor that helps avoid flooding.
         

         
        The UltiMaker S7 also includes quality of life improvements:
        Reliable bed tilt compensation (no more thumbscrews) 2.4 and 5 GHz Wi-Fi A 1080p camera (mounted higher for a better view) Compatibility with 280+ Marketplace materials Compatibility with S5 project files (no reslicing needed) And a whole lot more  
        Curious to see the S7 in action?
        We’re hosting a free tech demo on February 7.
        It will be live and you can ask any questions to our CTO, Miguel Calvo.
        Register here for the Webinar
          • Like
        • 10 replies
      • UltiMaker Cura 5.3.0-Alpha 🎄 Tree Support Spotlight 🎄
        Are you a fan of tree support, but dislike the removal process and the amount of filament it uses? Then we would like to invite you to try this special release of UltiMaker Cura. Brought to you by our special community contributor @thomasrahm
         
        We generated a special version of Cura 5.2 called 5.3.0 Alpha + Xmas. The only changes we introduced compared to UltiMaker Cura 5.2.1 are those which are needed for the new supports. So keep in mind, this is not a sneak peek for Cura 5.3 (there are some really cool new features coming up) but a spotlight release highlighting this new version of tree supports.  
          • Like
        • 16 replies
      • New here? Get ahead with a free onboarding course
        Hi,
         
        Often getting started is the most difficult part of any process. A good start sets you up for success and saves you time and energy that could be spent elsewhere. That is why we have a onboarding course ready for
        Ultimaker S5 Pro Bundle, Ultimaker S5, Ultimaker S3 Ultimaker 2+ Connect.   
        They're ready for you on the Ultimaker Academy platform. All you need to do to gain access is to register your product to gain free access. 
        Ready? Register your product here in just 60 seconds.
          • Like
        • 14 replies
    ×
    ×
    • Create New...